ashraestandard18911hour4slidesperpage
TRANSCRIPT
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
1/17
The (Proposed) ASHRAEThe (Proposed) ASHRAE
Standard 189.1Standard 189.1
HighHigh--Performance,Performance,Green BuildingsGreen Buildings
Tom Lawrence, Ph.D. P.E., LEEDTom Lawrence, Ph.D. P.E., LEED--APAP
[email protected]@engr.uga.edu
44
ASHRAE Standard 189.1ASHRAE Standard 189.1
Overview of proposed ASHRAE StandardOverview of proposed ASHRAE Standard
189.1 for189.1 forHighHigh--Performance, GreenPerformance, Green
BuildingsBuildings
-- What is it?What is it?
-- Why have it?Why have it?
-- StatusStatus
-- HighlightsHighlights
55
ASHRAEASHRAEs More Active Role ins More Active Role in
Sustainable DesignSustainable Design
Sustainability PolicySustainability Policy What Standard 189.1 is:What Standard 189.1 is:
-- a standarda standard
-- applies to all buildings except lowapplies to all buildings except low--rise residentialrise residentialbuildings (same as ASHRAE Std 90.1)buildings (same as ASHRAE Std 90.1)
-- intended for adoption into model building codesintended for adoption into model building codes
What Standard 189.1 is not:What Standard 189.1 is not:
-- notnot a design guidea design guide
-- notnot a rating systema rating systemEven if not adopted by local authorities,this Standard is an indication of future trends
Standard 189.1: IntentStandard 189.1: Intent
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
2/17
Standard 189.1: Relation to OtherStandard 189.1: Relation to Other
ASHRAE StandardsASHRAE Standards
Adapt, withmodifications
Adapt,with minor
modifications
Adapt
62.1 (current version)90.1 (current version)
90.1 (current version)
55 (current version)
88
Why is this Needed?Why is this Needed?
Localities are beginning to adoptLocalities are beginning to adoptgreengreen
buildingbuildingas a requirementas a requirement
-- LEED certification (to some level)LEED certification (to some level)
-- Others are more vagueOthers are more vague
Intended to fill a gap in evolving buildingIntended to fill a gap in evolving building
codescodes
ASHRAE partnership with USGBC, IESNA,ASHRAE partnership with USGBC, IESNA,
and will be submitted for ANSI approvaland will be submitted for ANSI approval
99
Organization and What it CoversOrganization and What it Covers
Similar to other ASHRAE standards and LEEDSimilar to other ASHRAE standards and LEED
and Plans for Operation
MandatoryMandatory
PrescriptivePrescriptive
PerformancePerformance
1010
The purpose of this standard is to provideThe purpose of this standard is to provide
minimum requirements for theminimum requirements for the siting, design,siting, design,
construction, and plans for operationconstruction, and plans for operationof highof high
performance, green buildings to:performance, green buildings to:(a)(a) balancebalanceenvironmental responsibility,environmental responsibility,
resource efficiency, occupant comfort and wellresource efficiency, occupant comfort and well
being, and community sensitivity, andbeing, and community sensitivity, and
(b)(b) support the goal of development thatsupport the goal of development that
meets the needs of the present w ithoutmeets the needs of the present w ithout
compromisingcompromisingthe ability of future generationsthe ability of future generationsto meet their own needs.to meet their own needs.
Section 2Section 2 -- PurposePurpose
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
3/17
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
4/17
1515
ChallengesChallenges
Using normative (code) languageUsing normative (code) language
Determining the stringency for aDetermining the stringency for a
minimumminimumstandardstandard
Identifying standards or regulations to citeIdentifying standards or regulations to cite(could not reference guidelines)(could not reference guidelines)
Prescribing universal strategiesPrescribing universal strategies(requirements for all, not a menu)(requirements for all, not a menu)
Coordination with other initiativesCoordination with other initiatives Creating something that is enforceableCreating something that is enforceable
1616
Ind irect Benefits of Establishing BaselineIndirect Benefits of Establishing Baseline
More certainty for manufacturersMore certainty for manufacturers
-- Will develop and provide next generationWill develop and provide next generation
products if a market is known to existproducts if a market is known to exist
Benefits to existing buildingsBenefits to existing buildings
-- Suppliers will stock better performingSuppliers will stock better performing
products as they become availableproducts as they become available
1717
Potential Users of Std. 189.1Potent ial Users of Std. 189.1
Organizations with green building ratingOrganizations with green building rating
systems (LEED, Green Building Initiative)systems (LEED, Green Building Initiative)
Developers:Developers:
individual projectsindividual projects
Corporations:Corporations: corporate ownedcorporate owned
Universities:Universities: campus buildingscampus buildings
States/provinces/municipalities:States/provinces/municipalities:
-- their own buildingstheir own buildings
-- basis for incentivesbasis for incentives
-- private construction, through reference inprivate construction, through reference in
local codeslocal codes
1818
x.1:x.1: ScopeScope
x.2:x.2: ComplianceCompliance
x.3:x.3: MandatoryMandatory(required for all projects)(required for all projects)
x.4:x.4: PrescriptivePrescriptive optionoption
(simple option, minimal choices,(simple option, minimal choices,
very few calculations)very few calculations)
x.5:x.5: PerformancePerformance optionoption
(more sophisticated, flexibility, but(more sophisticated, flexibility, butmore effort)more effort)
Standard 189.1 Basic StructureStandard 189 .1 Basic Structure
For Each Section
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
5/17
1919
Highlights of Standard 189.1Highlights of Standard 189.1
Chapter 5Chapter 5 -- Sites:Sites:
Discourages unmitigated spraw lDiscourages unmitigated spraw l Prohibited development activityProhibited development activity
-- Flood plains, wetlands, fish and wildlifeFlood plains, wetlands, fish and wildlifehabitathabitat
Other areas that are addressed:Other areas that are addressed:-- Amount of impervious surface areaAmount of impervious surface area [max of[max of
60% of total site to be impervious]60% of total site to be impervious]-- Urban heat islandUrban heat island [shaded or higher solar[shaded or higher solarreflective index materials]reflective index materials]
-- LightLightpollutionpollutionlimitationslimitations2020
Mandatory P rovisionsMandatory P rovisions
Heat island effectHeat island effect-- Site hardscape:Site hardscape:
to be shaded, be SRIto be shaded, be SRI29, or porous pavers29, or porous pavers
-- Wall:Wall:to be shaded up toto be shaded up to20 feet above grade20 feet above grade
-- Roofs:Roofs:to be SRI 78 (lowto be SRI 78 (low--slope)/29 (steepslope)/29 (steep--slope) or cool roofslope) or cool roof
Sustainable SitesSustainable Sites
Definition: SRI
Standard black = 0; standard white = 1
2222
Confusion of Heat Island w ithConfusion of Heat Island w ith
Building Heat GainsBuilding Heat Gains
Two separate issues!Two separate issues!
-- Heat IslandHeat Island
-- Building heat gainBuilding heat gain
AAcool roofcool roofis just one of the potential strategiesis just one of the potential strategies
for reducing heat gain to a building structurefor reducing heat gain to a building structure
The Heat Island effect is a Siteissue (Section 5); heat gainto a building (and how fast it enters the buildin g) isprimarily an Energyissue (Section 7)
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
6/17
2323
Mandatory P rovisionsMandatory P rovisions
Reduction ofReduction ofl ight pollutionlight pollution
-- Outdoor lightingOutdoor lighting
trespass:trespass:
limits onlimits on
horizontal andhorizontal and
vertical luxvertical lux
Sustainable SitesSustainable Sites
2424
Prescriptive Path forPrescriptive Path for
ComplianceCompliance Site DevelopmentSite Development
-- All sites:All sites:Min. 40% of area to beMin. 40% of area to beeffective pervious surface (vegetation, greeneffective pervious surface (vegetation, greenroof, porous pavers)roof, porous pavers)
-- Greenfield sites:Greenfield sites:Min. 20% of area native or adapted plantsMin. 20% of area native or adapted plants
Sustainable SitesSustainable Sites
2525
Mandatory ProvisionsMandatory Provisions
Site water useSite water use: bio: bio--diverse plantings,diverse plantings,
hydrozoning, & smart irrigation controllershydrozoning, & smart irrigation controllers
Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency
2626
Mandatory ProvisionsMandatory Provisions
Building water useBuilding water use::
((6.3.2.1)6.3.2.1) plumbing fixtures & fittings perplumbing fixtures & fittings per
U.S. EPA WaterSense or ASME StandardsU.S. EPA WaterSense or ASME Standards
((6.3.2.2)6.3.2.2) appliances per U.S. EPAappliances per U.S. EPA
EnergyStar, with water use factor for publicEnergyStar, with water use factor for public
access appliancesaccess appliances
Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
7/17
2727
Mandatory P rovisions (ContMandatory P rovisions (Cont d)d)
HVAC Systems (HVAC Systems (6.3.2.3)6.3.2.3) ::
-- Once through cooling prohibitedOnce through cooling prohibited
-- Cooling tower makeup and blowdownCooling tower makeup and blowdown
meters, efficient drift eliminatorsmeters, efficient drift eliminators
-- Condensate collection from units > 19 kWCondensate collection from units > 19 kW
(65,000 Btu/hr)(65,000 Btu/hr)
Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency
2828
Performance OptionPerformance Option
Site water use reductionSite water use reduction ::
proposed potable water for irrigationproposed potable water for irrigation< 35% of baseline evapotranspiration< 35% of baseline evapotranspiration
Building useBuilding use::
Proposed use < [mandatory+ prescriptive]Proposed use < [mandatory+ prescriptive]
Chapter 6Chapter 6 Water Use EfficiencyWater Use Efficiency
2929
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
EnergyEnergy -- General:General:
Goal is 30% less than Standard 90.1Goal is 30% less than Standard 90.1--20072007
INCLUDING PROCESS LOADSINCLUDING PROCESS LOADS
Appendix G from Standard 90.1 isAppendix G from Standard 90.1 is
incorporated as aincorporated as a Normative AppendixNormative Appendix
Metering for verificationMetering for verification
Peak load reductionPeak load reduction
Other areas increase stringency beyondOther areas increase stringency beyondStandard 90.1Standard 90.1
Green Buildings Overview,Green Buildings Overview,
Standard 189Standard 189 -- 3030
ASHRAE Energy GoalsASHRAE Energy Goals
2010 2015 2020 2025 2030
36000
Year
Energy(kBtu/yr)
ASHRAE BOD Goal
Standard 90.1Standard 90.1
Standard 189Standard 189
AEDGAEDG
Energy Reduction Proposal409,000 kJ/m-yr
Btu/ft-yr
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
8/17
3131
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
Mandatory Requirements:Mandatory Requirements:
-- OnOn--site renewable power (site renewable power (7.3.2)7.3.2)1% of service overcurrent rating1% of service overcurrent rating
-- ExceptionsExceptions
-- solar hot water heating with 100%solar hot water heating with 100%
total usetotal use oror peak capacity = 2.5%peak capacity = 2.5%
of service overcurrent ratingof service overcurrent rating
-- By 10% improvement in energyBy 10% improvement in energyefficiency plus COefficiency plus CO2e2e reductionreduction
80%80%
2.0%2.0%
RevisedRevised
in ISCin ISC
3232
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
EnergyEnergy Mandatory continued:Mandatory continued:
Remote or automatic reading metersRemote or automatic reading meters
((7.3.3)7.3.3) criteria based on sizecriteria based on size
-- Energy sources (Table 7.3.3Energy sources (Table 7.3.3--1)1)
-- Key systems (Table 7.3.3Key systems (Table 7.3.3--2)2)
Meters communicate to central recordingMeters communicate to central recording
systemsystem
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
3333
Metering Thresholds:Metering Thresholds: May beMay beRevisedRevised
in ISCin ISC
3434
Prescriptive Option (General)Prescriptive Option (General)
Target is to comply withTarget is to comply withStandard 90.1Standard 90.1--20072007
plusplus 30% savings30% savings
Standard 189.1 buildsStandard 189.1 buildsfrom 90.1from 90.1--20072007
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
9/17
3535
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
Prescriptive Option (Continued)Prescriptive Option (Continued)
Prescriptive Option:Prescriptive Option:
-- Lower lighting power density (90%), expandLower lighting power density (90%), expandoccupancy sensor controloccupancy sensor control
-- Increased requirement for economizers andIncreased requirement for economizers andvariable speed controlsvariable speed controls
-- SHGC , East & West window area combinationSHGC , East & West window area combinationlimits for climate zones 1limits for climate zones 1--4 (west only in 54 (west only in 5--6)6)
3636
Prescriptive Option (Building Envelope)Prescriptive Option (Building Envelope)
Section 7.4.2 generally has more stringentSection 7.4.2 generally has more stringent
requirements for building enveloperequirements for building envelope Replaces Table 5.5Replaces Table 5.5--1 thru 8 on building1 thru 8 on building
envelope in 90.1, for example:envelope in 90.1, for example:
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)((7.4.2 a )7.4.2 a )
May beMay be
RevisedRevised
in ISCin ISC
3737
Prescriptive Option (Building Envelope)Prescriptive Option (Building Envelope)
Example comparisons:Example comparisons:
More stringent SHGCMore stringent SHGC
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
Example:Example:
Climate zone 3Climate zone 3 Std 90.1 Std 189.1Std 90.1 Std 189.1
Insulation above deck RInsulation above deck R--1515 RR--2525
Example for 10Example for 10 --40% window area:40% window area:
Climate zone 5Climate zone 5
Std. 90.1: 0.39 (0.49 north)Std. 90.1: 0.39 (0.49 north)Std. 189 .1: 0.35 all orientat ionsStd. 189 .1: 0.35 all orientat ions
((7.4.2 a )7.4.2 a )
3838
Prescriptive Option (Building Envelope)Prescriptive Option (Building Envelope)
Vertical fenestrationVertical fenestration 0.5
((7.4.2 e)7.4.2 e)
-- Permanent projections: west, east & southPermanent projections: west, east & south
-- Climate zones 1Climate zones 1--55
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
10/17
3939
Prescriptive Option (Mechanical)Prescripti ve Option (Mechanical)
Higher equipmentHigher equipment
efficienciesefficiencies
More pipe/duct insulationMore pipe/duct insulation
Fan power allowance 10% lessFan power allowance 10% less
Unoccupied hotel/motel rooms to haveUnoccupied hotel/motel rooms to have
autoauto--shutoffshutoff
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
4040
Prescriptive Option (Lighting)Prescriptive Option (Lighting)
Interior lighting power to be 10% lessInterior lighting power to be 10% less
than ASHRAE Standard 90.1than ASHRAE Standard 90.1
Occupancy sensorOccupancy sensor
controlscontrols
AutoAuto--controlscontrols
for lighting infor lighting in
daylight zonesdaylight zones
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
7.4.3 HVAC
90.1 (current version)
Adapt, withmodifications
General Concept:Base on Standard 90.1, butmodify to gain improvedenergy performance overcode minimum standards
90.1 (current version)
4242
7.4.3 HVAC7.4.3 HVAC
Brief mention of modifications to Std. 90.1Brief mention of modifications to Std. 90.1
-- 7.4.3 (a)7.4.3 (a) Expanded air economizerExpanded air economizer
requirementrequirement
-- 7.4.3 (b)7.4.3 (b) Minimum equipment efficiencyMinimum equipment efficiency
-- 7.4.3 (c)7.4.3 (c) Motorized dampers exceptionMotorized dampers exception
-- 7.4.3 (d)7.4.3 (d) Lowers DCV occupancy thresholdLowers DCV occupancy threshold
-- 7.4.3 (e)7.4.3 (e) Duct sealing level A everywhereDuct sealing level A everywhere
-- 7.4.3 (f)7.4.3 (f) Expanded economizer requirementExpanded economizer requirement
-- 7.4.3 (g)7.4.3 (g) Zone reheatZone reheat-- 7.4.3 (h)7.4.3 (h) Fan power limitation 10% lowerFan power limitation 10% lower
-- 7.4.3 (i)7.4.3 (i)Added partAdded part--load fan power limitsload fan power limits
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
11/17
4343
7.4.3 HVAC7.4.3 HVAC
Brief mention of modifications to Std. 90.1Brief mention of modifications to Std. 90.1
(Continued)(Continued)
-- 7.4.3 (j)7.4.3 (j) Lowered pump power thresholdLowered pump power threshold
-- 7.4.3 (k)7.4.3 (k) Expand energy recovery reqExpand energy recovery reqtt
-- 7.4.3 (l)7.4.3 (l) Kitchen hoods add variable speedKitchen hoods add variable speed
-- 7.4.3 (m and n)7.4.3 (m and n) Minimum duct and pipeMinimum duct and pipe
insulation increased (Tables Cinsulation increased (Tables C--16, 17 and 18)16, 17 and 18)
-- 7.4.3 (o)7.4.3 (o)Added pipe sizing/flow limitationAdded pipe sizing/flow limitation
-- 7.4.3 (p)7.4.3 (p) Unoccupied hotel/motel guestUnoccupied hotel/motel guest
roomsrooms
4444
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
Performance Based Option:Performance Based Option:
Demonstrated equivalent performance inDemonstrated equivalent performance inbothboth energyenergyandand COCO22 equivalentequivalent
compared to if using the Prescriptive pathcompared to if using the Prescriptive path
ProposedProposed Mandatory +Mandatory +Prescriptive PathPrescriptive Path
Using Appendix DUsing Appendix DPerformance OptionPerformance Optionfor Energy Efficiencyfor Energy Efficiency
4545 4646
Highlights for Energy (Chapter 7)Highlights for Energy (Chapter 7)
Performance Based Option:Performance Based Option:
COCO22 equivalentequivalent compared to buildingcompared to building
designed to the Prescriptive pathdesigned to the Prescriptive path
NationalNational
(U.S.)(U.S.)
basedbased
numbersnumbers
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
12/17
4747
Indoor Environmental Quality (Indoor Environmental Quality ( 8)8)
Mandatory Key Items toMandatory Key Items to
ASHRAE members:ASHRAE members:-- Outdoor airflowOutdoor airflow
-- Tobacco smoke controlTobacco smoke control
-- Outdoor air monitoringOutdoor air monitoring
Refers to and modifies
4848
Indoor Environmental QualityIndoor Environmental Quality
8.3.1 M inimum IAQ8.3.1 M inimum IAQ
1.3 times Standard 62 .11.3 times Standard 62 .1--2004 outdoor2004 outdoorairflow for offices and classroomsairflow for offices and classrooms(climate zone and other exceptions)(climate zone and other exceptions)-- Climate zones 1A and 2AClimate zones 1A and 2A
-- Offices zones 6,7,8 w ithout heat recoveryOffices zones 6,7,8 w ithout heat recovery
-- NonNon--attainment air quality areasattainment air quality areas
-- Design according to IAQ procedureDesign according to IAQ procedure
NonNon--attainment PMattainment PM 2.52.5 MERV 13 filtersMERV 13 filters
4949
Example, and discussion on additionaloutdoor airflow requirement
5050
Indoor Environmental QualityIndoor Environmental Quality
8.3.28.3.2
Environmental Tobacco SmokeEnvironmental Tobacco Smoke
ControlControl-- No smok ing inside, w ith signageNo smok ing inside, w ith signage
-- No smoking w ithin 25 feet of entrance,No smoking w ithin 25 feet of entrance,
outdoor air intakes or operable windowsoutdoor air intakes or operable windows
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
13/17
5151
Indoor Environmental QualityIndoor Environmental Quality
Indoor Environmental Quality:Indoor Environmental Quality:
Mandatory:Mandatory: 8.3.3 Outdoor Air Monitoring8.3.3 Outdoor Air Mon itoring
-- COCO22 monitoring for systems servingmonitoring for systems serving
densely occupied spaces (lowerdensely occupied spaces (lower
threshold forthreshold for densely occupieddensely occupied
than Std. 90.1than Std. 90.1--2007)2007)
-- NonNon--densely occupied spaces monitor outdoordensely occupied spaces monitor outdoorairflow toairflow to 15% of15% ofdesign minimumdesign minimum
outdoor airflow rateoutdoor airflow rate
BeingBeing
RevisedRevised
in ISCin ISC5252
Indoor Environmental QualityIndoor Environmental Quality
Other Mandatory:Other Mandatory:
Thermal ComfortThermal Comfort-- Comply withComply with
ASHRAE Std 55ASHRAE Std 55
Mat systems atMat systems at
building entrancesbuilding entrances
Acoustical designAcoustical design
for envelope (soundfor envelope (soundtransmission ratingtransmission rating
criteria)criteria)
5353
Other Mandatory:Other Mandatory:
Minimum MERV 8Minimum MERV 8
filtration upstreamfiltration upstreamof cooling coilsof cooling coils
(revises 62.1)(revises 62.1)
Daylighting byDaylighting by
toplighting fortoplighting for
large open spaceslarge open spaces
Indoor Environmental QualityIndoor Environmental Quality
5454
Indoor Environmental Quality (Ch 8)Indoor Environmental Quality (Ch 8)
Mandatory:Mandatory:
Thermal ComfortThermal Comfort
-- Comply withComply withASHRAE Std 55ASHRAE Std 55
Mat systems atMat systems at
building entrancesbuilding entrances
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
14/17
5555
Prescriptive Option (Prescriptive Option (8.4)8.4)::
Side daylightingSide daylighting-- Offices and classroomsOffices and classrooms
-- Minimum effective aperture of windowsMinimum effective aperture of windows
-- Minimum visible reflectance of interiorMinimum visible reflectance of interior
surfacessurfaces
-- Exceptions forExceptions fordark roomsdark rooms,,
facades closely adjacent tofacades closely adjacent toother buildingsother buildings
Indoor Environmental QualityIndoor Environmental Quality
5656
Prescriptive Option (ContPrescriptive Option (Contdd))::
Office space shading, with projections orOffice space shading, with projections orother techniquesother techniques
Low emitting materialsLow emitting materials
-- Adhesives and sealantsAdhesives and sealants
-- Paints and coatingsPaints and coatings
-- Floor covering materialsFloor covering materials
-- Composite wood and agrifiber productsComposite wood and agrifiber products
Indoor Environmental QualityIndoor Environmental Quality
5757
Performance Option (Performance Option (8.5)8.5)::
Daylighting simulationDaylighting simulation
-- All regularly occupied spacesAll regularly occupied spaces-- Minimum illuminance target:Minimum illuminance target:
300 lux (30 fc) on work surfaces,300 lux (30 fc) on work surfaces,4.5 m (15 ft) from facade, noon equinox4.5 m (15 ft) from facade, noon equinox
-- Direct sunlight on workplane < 20% ofDirect sunlight on workplane < 20% ofoccupied hours on equinox dayoccupied hours on equinox day
Modeling to show compliance withModeling to show compliance withCalifornia CA/DHS/EHLB/RCalifornia CA/DHS/EHLB/R--7174 (low7174 (lowemitting materials)emitting materials)
Indoor Environmental QualityIndoor Environmental Quality
May beMay be
RevisedRevised
in ISCin ISC
5858
BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,
Materials and Resources (Materials and Resources ( 9)9)
Mandatory Items Key to ASHRAE:Mandatory Items Key to ASHRAE:
CFC, other refrigerant restrictionsCFC, other refrigerant restrictions
-- No CFCsNo CFCs-- Global warm ing and ozone depletionGlobal warm ing and ozone depletion
potentia l balancepotentia l balance
LCGWP = Life cycle global warmingLCGWP = Life cycle global warming
LCODP = Life cycle ozone depletionLCODP = Life cycle ozone depletion
Units: kg CFC11/ kW-yrlb CFC11/ ton-yr
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
15/17
5959
BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,
Materials and Resources (Materials and Resources ( 9)9)
Refrigerant restrictions (Continued):Refrigerant restrictions (Continued):
GWPGWPrr = global warm ing potential= global warming potential
0 to 12,000 kg CO0 to 12,000 kg CO22/ kg refrigerant/ kg refrigerant
ODPODPrr = ozone depletion potential= ozone depletion potential
0 to 0.2 kg CO0 to 0 .2 kg CO22/ kg refrigerant/ kg refrigerantLr= Leak rateMr= End of life refrigerant lossRc= Charge
6060
BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,
Materials and Resources (Materials and Resources ( 9)9)
Refrigerant restrictions (Continued):Refrigerant restrictions (Continued):
Exception:Exception:
Small HVAC units, coolersSmall HVAC units, coolers
w ith < 0 .5 lb refrigerant chargew ith < 0.5 lb refrigerant charge
Life Cycle Assessment (Performance)Life Cycle Assessment (Performance)
-- Must include operating energy consumptionMust include operating energy consumption
-- LCA to includeLCA to include allall of these impact categories:of these impact categories:
land use, resource use, climate change,land use, resource use, climate change,
ozone layer depletion, human healthozone layer depletion, human health
effects, ecotoxicity, smog, acidification,effects, ecotoxicity, smog, acidification,
eutrophicationeutrophication
-- show 5% gain in two categories for theshow 5% gain in two categories for thebuildingbuilding
BuildingBuilding s Impact on Atmosphere,s Impact on Atmosphere,
Materials and Resources (Materials and Resources ( 9)9)
6262
1010 -- Construction and Operation PlansConstruction and Operation P lans
Mandatory:Mandatory:
Full commissioning for projectsFull commissioning for projects
> 5,000 ft> 5,000 ft
-- HVAC, building envelope, lighting, irrigation,HVAC, building envelope, lighting, irrigation,
plumbing, domestic water, renewable energyplumbing, domestic water, renewable energy
Addition of monitoring equipment forAddition of monitoring equipment for
measurement and verification, M&V plansmeasurement and verification, M&V plans
-- water, energy and IAQwater, energy and IAQ
-- M&V plans in placeM&V plans in place-- certification of lamp and ballast recyclingcertification of lamp and ballast recycling
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
16/17
6363
1010 -- Construction and Operation P lansConstruction and Operation Plans
10.3.3.3 Energy Efficiency10.3.3.3 Energy Efficiency
Two compliance pathsTwo compliance paths
-- Comparison to CBECSComparison to CBECSbenchmark 12benchmark 12--1818
months aftermonths after
occupancyoccupancy
-- Energy simulationEnergy simulation
Done every 3 yearsDone every 3 years
6464
1010 -- Construction and Operation PlansConstruction and Operation P lans
10.3.3.4 Indoor Environmental Quality10.3.3.4 Indoor Environmental Quality
If CO2 monitoring, determine maximumIf CO2 monitoring, determine maximum
allowableallowable action levelaction levelper Standard 62.1 forper Standard 62.1 forthat zone typethat zone type
For outdoor air flow, monitor and react ifFor outdoor air flow, monitor and react if
flow
-
8/4/2019 ASHRAEStandard18911hour4slidesperpage
17/17
FURTHER INFORMATIONFURTHER INFORMATION
Information on ASHRAE standards:Information on ASHRAE standards:
www.ashrae.orgwww.ashrae.org then followthen followStandardsStandards, includes listserv for, includes listserv for
Standard 189.1Standard 189.1
Information on USGBC programs:Information on USGBC programs:
www.usgbc.orgwww.usgbc.org
Information on IESNA programs:Information on IESNA programs:www.iesna.orgwww.iesna.org
6868
Thank you!Thank you!
Comments, questions, concerns, adviceComments, questions, concerns, advice
Dr. Tom Lawrence, P.E., LEEDDr. Tom Lawrence, P.E., LEED--APAP
[email protected]@engr.uga.edu